Robot vacuum cleaner



FIG. 1 is a front perspective view of a robot vacuum cleaner showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left-side view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a rear perspective view thereof;

FIG. 9 is a front perspective view thereof showing the robot vacuum cleaner in an alternate configuration;

FIG. 10 is a front view thereof;

FIG. 11 is a rear view thereof;

FIG. 12 is a left-side view thereof;

FIG. 13 is a right-side view thereof;

FIG. 14 is a top view thereof;

FIG. 15 is a bottom view thereof;

FIG. 16 is a rear perspective view thereof; and,

FIG. 17 is an enlarged view of the encircled portion of the robot vacuum cleaner in FIG. 9.

The broken lines in the figures depict portions of the robot vacuum cleaner that form no part of the claimed design.

The dot-dash broken lines encircling portions of the claimed design that are illustrated in enlargements form no part of the claimed design. 

CLAIM We claim the ornamental design for a robot vacuum cleaner, as shown and described. 